SonicWALL Internet Security Appliances - Manual (Page 84)

General and Network Settings Page 85
9. Select the Disconnect after __ Minutes of Inactivity check box to automatically disconnect the
L2TP connection after a specified period of inactivity. Define a maximum number of minutes of
inactivity in the Minutes field. This value can range from 1 to 99 minutes.
10. Click Update. Once the SonicWALL has been updated, a message confirming the update is
displayed at the bottom of the browser window. Restart the SonicWALL for these changes to
take effect.
Alert When NAT is enabled, the SonicWALL LAN IP Address is used as the gateway address for
computers on the LAN.
When your SonicWALL has successfully established a L2TP connection, the Network page displays
the SonicWALL WAN IP settings. The WAN Gateway (Router) Address, SonicWALL WAN IP (NAT
Public) Address, WAN/LAN Subnet Mask, and DNS Servers are displayed.
Alert Enable and configure the SonicWALL DHCP server or manually configure client DNS settings
to obtain DNS name resolution.
Restarting the SonicWALL
Once the network settings have been updated, the Status bar at the bottom of the browser window
displays "Restart SonicWALL for changes to take effect." Restart the SonicWALL by clicking Restart.
Then click Yes to confirm the restart and send the restart command to the SonicWALL. The restart
can take up to 90 seconds, during which time the SonicWALL is inaccessible and all network traffic
through the SonicWALL is halted.
Alert! If you change the SonicWALL LAN IP Address, you must to change the Management Station
IP address to be in the same subnet as the new LAN IP address.